IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 10-BIT BUS SWITCH DESCRIPTION: FEATURES: – – – – – – – The CBTLV3861 provides ten bits of high-speed bus switching with low on-state resistance of the switch allowing connections to be made with minimal propagation delay. 5Ω A/B bidirectional switch Isolation Under Power-Off Conditions Over-voltage tolerant Latch-up performance exceeds 100mA VCC = 2.3V - 3.6V, Normal Range ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) Available in SSOP, QSOP, and TSSOP packages The device is organized as one 10-bit bus switch. When output enable (OE) is low, the 10-bit bus switch is on and port A is connected to port B. When OE is high, the switch is open and a high-impedance state exists between the two ports. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. APPLICATIONS: – 3.3V High Speed Bus Switching and Bus Isolation SIMPLIFIED SCHEMATIC, EACH SWITCH FUNCTIONAL BLOCK DIAGRAM A1 2 IDT74CBTLV3861 SW 22 B1 A A10 11 SW 13 B B10 23 OE OE INDUSTRIAL TEMPERATURE RANGE DECEMBER 2000 1 c 2000 Integrated Device Technology, Inc. DSC-5741/- IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol VCC Description Supply Voltage Range Max. –0.5 to 4.6 VI Input Voltage Range (1) –0.5 to 4.6 V Continuous Channel Current 128 mA IIK Input Clamp Current, , VI/O < 0 –50 mA TSTG Storage Temperature –65 to +150 °C NC 1 24 V CC A1 2 23 OE A2 3 22 B1 A3 4 21 B2 A4 5 20 B3 A5 6 19 B4 A6 7 18 B5 A7 8 17 B6 A8 9 16 B7 A9 10 15 B8 Input Operation A 10 11 14 B9 OE L A Port = B Port GND 12 13 B 10 H Disconnect SO24-7 SO24-8 SO24-9 Unit V NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. FUNCTION TABLE (1) NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level SSOP/ QSOP/ TSSOP TOP VIEW OPERATING CHARACTERISTICS, TA = 25°C Symbol VCC Supply Voltage VIH High-Level Control Input Voltage VIL TA Parameter Low-Level Control Input Voltage Test Conditions Min. 2.3 Max. 3.6 VCC = 2.3V to 2.7V 1.7 — VCC = 2.7V to 3.6V 2 — VCC = 2.3V to 2.7V — 0.7 VCC = 2.7V to 3.6V — 0.8 −40 +85 Operating Free-Air Temperature NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. 2 Unit V V V °C IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = – 40°C to +85°C Symbol VIK Parameter Control Inputs, Data I/O Test Conditions VCC = 3V, II = −18mA II Control Inputs, Data I/O VCC = 3.6V, VI = VCC or GND IOZ Data I/O Min. — Typ.(1) — Max. – 1.2 Unit V — — ±1 µA VCC = 3.6V, VO = 0 or 3.6V, switch disabled — — 5 µA IOFF VCC = 0, VI or VO = 0 to 3.6V — — 50 µA ICC VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 µA ∆ICC (2) Control Inputs VCC = 3.6V, One input at 3V, Other inputs at VCC or GND — — 300 µA CI Control Inputs VI =3V or 0 — 4 — pF VO = 3V or 0, OE = VCC — 6 — pF IO = 64mA — 5 8 CIO(OFF) VCC = 2.3V VI = 0 Typ at VCC = 2.5V RON (3) IO = 24mA — 5 8 VI = 1.7V IO = 15mA — 27 40 VI = 0 IO = 64mA — 5 7 IO = 24mA — 5 7 IO = 15mA — 10 15 VCC = 3V VI = 2.4V Ω NOTES: 1. Typical values are at VCC = 3.3V, +25°C ambient. 2. The increase in supply current is attributable to each input that is at the specified voltage level rather than VCC or GND. 3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. SWITCHING CHARACTERISTICS VCC = 2.5V ± 0.2V Symbol tPD(1) tEN tDIS Parameter Propagation Delay A to B or B to A Output Enable Time OE to A or B Output Disable Time OE to A or B VCC = 3.3V ± 0.3V Min. — Max. 0.15 Min. — Max. 0.25 Unit ns 1 4.5 1 4.2 ns 1 5 1 5 ns NOTE: 1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance when driven by an ideal voltage source (zero output impedance). 3 IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS PROPAGATION DELAY Symbol VLOAD VCC(1)= 3.3V ± 0.3V 6 VCC(2)= 2.5V ± 0.2V 2 x Vcc Unit V VIH 3 Vcc V VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF SAM E PHASE INPUT TRANSITION DISABLE CONTROL INPUT GND tPZL V OUT D.U.T. OUTPUT SW ITCH NORMALLY CLOSED LOW tPZH OUTPUT SW ITCH NORMALLY OPEN HIGH 500 Ω CL DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator SWITCH POSITION tPLZ/tPZL Switch VLOAD tPHZ/tPZH GND tPD Open tPLZ V IH VT 0V V LOAD/2 V LOAD/2 VT V OL + V LZ V OL tPHZ VT V OH V OH - V HZ 0V 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable HIGH NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns 2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2ns; tR ≤ 2ns Test V IH VT 0V ENABLE 500 Ω RT t PHL V OH VT VOL ENABLE AND DISABLE TIMES Open Pulse Generator tPLH V LOAD V CC (1, 2) tPHL OPPO SITE PHASE INPUT TRANSITION TEST CIRCUITS FOR ALL OUTPUTS V IN t PLH OUTPUT V IH VT 0V 4 IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX Temp. R ange CBTLV XXX XX Device Type Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 PY Q PG Shrink Small Outline Package (SO24-7) Quarter-size Small Outline Package (SO24-8) Thin Shrink Small Outline Package (SO24-9) 3861 Low-Voltage 10-Bit Bus Switch 74 –40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com* *To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. The IDT logo is a registered trademark of Integrated Device Technology, Inc. 5